Adding using the column method

Maths

Which of the following equations is the odd one out because it requires no regrouping?

Which of the following equations is the odd one out because it requires regrouping in the tens column?

My equation is 3242 + 4567 = ... which is the best estimate to make before I calculate my answer?

My equation is 6621 + 2098 = ... which is the best estimate to make before I calculate my answer?

One of the digits in this column addition is missing. What is the missing number?

Mrs Crane has derived some facts from the following equation: 10 + 3 = 13. Which of the following is NOT correct?

Mrs Crane has derived some facts from the following equation: 2 + 3 = 5. Which of the following is NOT correct?

Which is the most efficient strategy to use to solve the following equation: 2432 + 2438

Which is the most efficient strategy to use to solve the following equation: 5434 - 1996

Which is the most efficient strategy to use to solve the following equation: 4007 - 3991